228: What are such images called? What’s being referenced here?

227: This was an amusing news item from mid 2008. “Rapper Jay-Z stuck one finger up to Noel Gallagher last night by starting his Glastonbury set with a version of the Oasis hit Wonderwall – and playing electric guitar. Loudmouth Noel had slammed organisers for inviting Jay-Z to headline the event. He said hip-hop was “wrong” for a festival “built on a tradition of guitar music”. Jay-Z didn’t mention the row but sang Noel’s hit song – and strummed a white Fender Stratocaster with full backing from his band.”